ex4100 raid-configuration

Hi! 

If I set 8tb ex4100 to use raid10, does that mean, that I have 4tb storage where 2x2tb are storage disks and 2x2tb are mirror “backups”?

Check the complete user manual, perhaps the answer lies within.

Hello,

RAID 10 is basically a convination of RAID 1 and RAID 0

Is similar to RAID 01 with an exception that two used standard RAID levels are layered in the opposite order; thus, RAID 10 is a stripe of mirrors.

So yes, what you are saying is correct.